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Finding the Fourth Proportional to 88,943.40, 133,091.10 and 55,679.40

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Solution

The fourth proportional to 88,943.40, 133,091.10 and 55,679.40 is: 83,316.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,943.40 : 133,091.10 = 55,679.40 : x
  2. Step 2: Convert to fraction form
    88,943.40/133,091.10 = 55,679.40/x
  3. Step 3: Cross multiply
    88,943.40x = 133,091.10 × 55,679.40
  4. Step 4: Simplify right side
    88,943.40x = 7,410,432,593.34
  5. Step 5: Solve for x
    x = 7,410,432,593.34/88,943.40
  6. Step 6: Final answer
    x = 83,316.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.